18069371 has 2 divisors, whose sum is σ = 18069372. Its totient is φ = 18069370.

The previous prime is 18069367. The next prime is 18069473. The reversal of 18069371 is 17396081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18069371 - 2² = 18069367 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (18069301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034685 + 9034686.

It is an arithmetic number, because the mean of its divisors is an integer number (9034686).

Almost surely, 2^18069371 is an apocalyptic number.

18069371 is a deficient number, since it is larger than the sum of its proper divisors (1).

18069371 is an equidigital number, since it uses as much as digits as its factorization.

18069371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 18069371 is about 4250.8082760812. The cubic root of 18069371 is about 262.4103808960.

The spelling of 18069371 in words is "eighteen million, sixty-nine thousand, three hundred seventy-one".